Design Optimization of a Traction Synchronous Homopolar Motor

Synchronous homopolar motors (SHMs) have been attracting the attention of researchers for many decades. They are used in a variety equipment such as aircraft and train generators, welding inverters, traction motors. Various mathematical models SHMs proposed to deal with their complicated magnetic circuit. However, techniques optimizing not yet proposed. This paper discusses various aspects optimal design SHMs, applying one-criterion unconstrained Nelder–Mead method. The considered motor is intended use mining dump truck carrying capacity 90 tons. objective function SHM optimization was designed reduce/improve following main characteristics: total power loss, maximum winding current, torque ripple. One difficulties three-dimensional structure core, which usually requires finite element model. this study, an original two-dimensional model used; it allowed drastic reduction computational burden, enabling optimization. As result optimization, losses decreased by up 1.16 times ripple 1.34 times; armature current mode 8%.